package thread;

public class SyncDemo4 {
    public static void main(String[] args) {
        Foo foo=new Foo();
        Thread t1=new Thread(){
            public void run(){
                foo.methodA();
            }
        };
        Thread t2=new Thread(){
            public void run(){
                foo.methodB();
            }
        };
        t1.start();
        t2.start();
    }
}
class Foo{
    public synchronized void methodA() {
        try {
            Thread t = new Thread();
            System.out.println(t.getName() + ":正在执行A方法...");
            Thread.sleep(5000);
            System.out.println(t.getName() + ":执行A方法完毕...");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
        public synchronized void methodB(){
            try {
                Thread t = new Thread();
                System.out.println(t.getName() + ":正在执行B方法...");
                Thread.sleep(5000);
                System.out.println(t.getName() + ":执行B方法完毕...");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

}